Mounting for drills



R. L. AMBROSE. MOUNTING FOR DRILLS.

APPLICATION FILED APR.27, 1918- JPammmbedl July 6 192%.

IN V EN TOR.

Eli

ll ii iiii tartar YL'VANIA, .ASSIGNOR TO INGERSOLL-RANJD SET, A CURPQRATIUN 0F NEW JERSEY.

htltlll'lhl'TllN'Et FOR BRI L t ddztiytdili Application filcrl April 522?,

To all iii/tom it may concern i lilo it known that l, ltounn'r l). Aarnuosn, a citizen of the United hltaxtes residiiur at lilaston, in the county oi l lorthunlptmi and liltate oi. llcnnsylvania have invented a certain new and useful improvement in Mount .ii'lgs :lor Drills, of which the :lollowing is a specification. c v

This invention relates to fluid operated rocli: drills and especially to a mounting or carriage for the same to advance the drill as the drilling progresses.

The objects of the Pl'GF-lOlll) invention are to providea nioiuiting or shell, tor riluid operated rock drills which will. permit the easy taking up of wear upon the engz'tginp; and wearing partsot the rock drill and mounting or shell; also, to allow a larger ainoiiint oi wear to be taken up without athacting the vertical adjustment of the drill in relation to the mounting to avoid binding oi? the lead. screw in its sockets, which occurs in the usual construction alter a substautial amount o'l. wear has been tel-zen up. [to 'l urther ohiect is to provide a mounting which is simple, compact, and one that will not easily be put out of order.

The above objects are accoin iilished by the invention a practical embodiment of which is represented in the accoin mnying drawings, in which l ignre ft shows-a plan view of the mountinn or shell,

liig. 2, a vertical elevation oi? thesinne,

l ig. 3, a cross sectional view of the same taken on the line or his. 2, and

Fig. 41-, one oi the liners used in the ad justn'ient of parts oi the mounting.

llcierring more particularly to the drain i ups, the shell is shown at l and is provided on. either side with horizontally lying lateral projections 2 having; parallel. flat surfaces between which projections is an opening or de n-ession in whicha lead screw 10 is located for advancing and withdrawing the drill casing 2-. (in either side of the drill casing or cylinder 3 are provided ti -shaped. projections 4; eiiztendjing rnitwardly from the drill casing 3 and engaging shell caps 5 mounted on the shell. 1 at either side. The shell. caps 5 are provided with ti -shaped recesscs 6 which allow close ei'lgageinent be tween the carriage or shell 1 and the shell as clearly shown in. Fig. 3, and pro vide hearings for the projections 4L which Specification of Letters Patent.

Patented duly c, time.

1918. $cria1 1W0. 231,18t.

will hold the drill 3 nigidly in alinement hut will. permit lQllgllllKllllttl movement of the drill ii. Constant operation of the drill body 3 in its carriage l produces a large amount oi. wear upon. the engaging and wearing sin-tacos m" the projections 41-. and recesses (5 which, unless properly taken up, will permit the drill to becoine loose within the mounting and lose its alincment in relation thereto,

The present construction provides for taking up this inlavoidable wear in the following inaiu'lor. Extensions 7 are provided on the shell caps 5 extending downwardly over the horizontally lying projections 2 on the sides of the carriage or shell 1.. l lxtend' ing through these extensions 7 are horizontal bolts El one end o'l each of which is countersunk into portions of the shell 1. as clearly shown in ll ig. 3. Nuts ll. on the outside end oi these bolts permit the shell caps 53 to he lirnily held against the pro jections 2. Between the ends of the pro jections 2 and the caps 33 are thin vertical liners S) extending over the ends of the projections which serve to space the caps from the shell projections a slight distance but retain them in alineinent and in close ongagcinent with the drill casing 8. Adjustment for wear of: these parts is compensated tor by simply removing one or more liners Bill r from either side oi the shell 1 until, the caps 5 engage the extensions ll: of the drill with sullicicnt contact to prevent loosencss between the drill and the shell and still permit the drill to slide 'lireely forwardly and hacieardly. The present construction permits the adjustment ot the shell caps 5 to he made without varying the distance between the center line oi? the drill missing 3 and the lead screw 10. This overcomes the ditiiculty which has frequently occurred in the past ot. the binding oi the lead screw in its hearings when a large amount of adjust ment has been made. This has been due to the in ct that in the adji'lstnient of the mount ingin relation to the drill cylinder wear has been taken up in one direction only with a consequent result that the distance between the center lines ot the drill. cylinder and mounting was constantly being altered. In the present construction this distance is not atlect l by the adjustment ol. the shell caps 5 for the reason that the wear is taken up equally oh the upper and lower surfaces of lllll the V-shaped depressions 6 and the move ment of the shell caps 5 is lateral only.

Itis to be understood that the present showing and description discloses only one specific embodiment of the present inven tion and that other forms and modifications are included within the spirit and scope oi the invention as expressed in the appended claims.

, What I claim is:

1. In a carriage or mounting for roek drills, a shell having horizontally lying lateral projections, shell caps fitting over said projections, horizontal bolts for drawing said shell caps over said projections and V-shaped-recesses and projections between the shell caps and tl e cylinder casing, whereby slack o play in all directions between the cylinder casing and shell caps is taken up by one adjustment and the alinement of the cylinder easing restored to the original position.

2. In a carriage or mounting for rock drills, ashell having horizontally lying lateral projections, shell caps fitting over ROBERT L. AMBIM )SE. 

